Inking mechanism for printing-presses



PATENTED JAN. 12, 1904.

G, P. FBNNER. INKING MECHANISM FOR PRINTING PRBSSES.

APPLIUA TION FILED JULY 16. 1903.

fio MODEL.

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v UNITED STATES Patented January 12, 1904.

PATENT OFFICE.

INKING MECHANISM FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 749,546, dated January12, 1904.

- Application filed July 16, 1903. Serial No. 165,850. (No model.)

To mZZ whom it may concern:

Be it known that I, GEORGE P. FENNER, a

citizen of the United States, residing at New London, in the county ofNew London and State of Connecticut, have invented new and usefulImprovements in Inking Mechanism for Printing-Presses, of which thefollowing is a specification.

By means of this invention a ductor-roller is made to come into contactwith an ink-distributing roller while the latter is at rest and toremain in contact during about one-half of i v a revolution of the pressand until the distributing-roller is practically at rest again, when theductor-roller is moved into contact with the fountain-roller while theductor-roller is practically at rest. Injury to the ductor-roller canthus be prevented without the necessity of employing a brake or similardevice to stop the rotation of the ductor-rollerbefore it comes intocontact with the fountain. By this invention I also the distribution ofink is increased,because of the length of time that the ductor-roller iskept in contact with the distributing-roller.

. This invention is set forth in the following specification and claimsand illustrated in the annexed drawing, in which is shown a sideelevation ofa press containing said invention.

While the invention is notconfined to any specific construction ofpress, yet the one shown serves to illustrate an application of thisinvention to practice.

In the drawing is shown a ductor-roller 1 for taking ink from fountain 2or its roller 3 and 35 applying the same to the ink distributing roller4:, which in turn applies the same to inking-rollers, such as k. Theseinking-rollers in this particular case are shown at a distance from thecylinder g and apply'ink to the table or ink-slab extending to orforming part of type-bed f. On the bed moving toward the cylinder gtheink-slab portion contacts with ink-rollers is near cylinder g, andsuch rollers being inked will apply the ink to the type portion of bedor table f.

y y The movable support or arm 5 of theductorroller is connectedorlinked to the lever 6, ac-

tuated by cam 7 The parts are so arranged I or proportioned that theductor-roll is moved from the fountain to the distributing-roll and cally at rest.

with the fountain-roller.

comes into contact with such distributing-roll when saiddistributing-roll is nearly at rest and remains in contact during. aboutone-half (t) of a revolution of the press and untilthedistributing-roller is again at rest, or practically so. Thereupon theductor-roller is returned or removed from the distributingrollerandbrought into contact with the fountain-roller while the ductor-roller ispracti- Injury to the ductor-roller is thus prevented without theneed ofemploying a brake or mechanism to stop the rotation of the ductor-rollerbefore it comes into contact At the same time the distribution of ink isincreased, because of the length of time the ductor-roll is kept incontact with the distributing-roller. The ductor-roller is shown mountedfree in the carrier 5, so that it can readily rotate, as required. Theductor-roller in the arrangement shown is made to move only a shortdistance or less than its own diameter or thickness to pass from touchwith the fountain-roller into touch with the distributing-reller orvibrator 4 or contrariwise.

It can be noted that it is possible to makcthe ductor-roller lie againstthe vibrator or distributing-roller 4 during the half-revolution of thepress, because the movement of the ductor-roll is very slightthat is,the roll moves but a short distance. Hence its travel can be donequickly. Thus there is time to swing the ductor-roll from the vibratoragainst the fountain-roll, take ink from the fountainroll to theductor-roll, and swing the ductorroll back again against the vibratorduring the one-half revolution of the press.

In making the statement that the ductorroller makes contact when at restit is of course understood that contact is made in proximity to but notnecessarily exactly at the point of rest, since it is not necessary tohave the distributing-roll absolutely still when the ductor-roll strikesor contacts with the same.

What I claim as new, and desire to secureby Letters Patent, is

1. A printing-press having a ductor-roller, a distributing-rolleralternately rotated in 0pposite directions, a fountainroller, and a cammade to move the ductor-roller to contact with the distributing-rollerwhen the latter is substantially at rest and to hold the ductor-rollerin such contact during about one-half a revolution of the cam and untilthe distributingroller again comes to rest and then to remove or returnthe ductor-roller to contact with the fountain-roller.

2. A printing-press having a carrier, a ductor-roller freely rotatablein the carrier, a distributing-roller alternately rotated in oppositedirections, a fountain-roller, and a cam made to move the ductor-rollerto and hold the same in contact with the distributingroller during aboutone-half a revolution of the cam, so that the ductor-roller makes andbreaks contact with the distributing-roller at periods of-rest.

3. A printing-press having a ductor-roller, a distributing-rolleralternately driven in opposite directions, a fountain-roller, and a cammade to move the ductor-roller to contact with the distributing-rollerwhen the latter is practically or nearly at rest and to hold theductor-roller in such contact during about onehalf a revolution of thecam and until the distributing-roller again comes to rest and then toremove or return the ductor-roller to contact with the fountain-roller.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing Witnesses.

GEORGE P. FENNER.

Witnesses:

E. L. HUDSON,

M. E. SHERMAN.

